Hand brake



Jan. 24, 1928.

1 1315573142 H. E. ANDERSON HAND BRAKE Filed May 14, 1925 F' .j

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Patented Jan. 24, `1928.

HARLEYE. ANDERSON, or cHIcAco,

'ro W. H. Minna, INC., A c

` l HAND ESPATENT oFFice.

ILLINOIS, AssiGNon, BY MnsNE ASSIGNMENTS,"

ORPORATION OF DELAWARE.

BRAKE.

Appiication'paied may 14, 1923. serial No. 638,763.

This invention relates to improvements in hand brakes.

The object of the v an exceedingly simple n hand brake ofthe worminvention is to provide and inexpensive and nut-type for railway cars,wherein is employed a vertical pull rod.

In the drawing vforming a part specification, Figure 1 is a view in theend portion of a car,

vation of my improvements 2 is an enlarged,

applied vertical,

of this side elethereto. Figure sectional Vview of the upper portion ofthebrake mechanism andthe immediately end of the car. tal, sectionalview,

adjacent portionfof the And Figure 3 is a horizoncorrespondingsubstantially to the line 3`3 of Figure 2, showing the bearing sleeveand pull rod only.

In said drawing, 10 denotes of a rbox car, 11, a roof ning board `and 13a platfo man.

' The improved brake prises, broadly, a pull rod B; an upper bearing theendg wall board, 12a runrm for the brakemechanism com- A; `a hand wheelbracket C; a lower bearing bracket D; achain guide pulley E;

and a pulley bracket F.

The pull rod A is in the gated cylindrical bar,

end as indicated at 14.

form of an elonthreaded at its upper The rod A is guided for verticalsliding movement in the brackets C and D and platform end connected bymeans of a pin and has its lower to one end of a brake chain 15 theopposite end of the chain 15 being` connected with the brake mechanismproper. guided ley E, which of the end sill 17.

The brake chain 15 is in its movements bythe grooved pulrotatablyjournaled in the bracket F, is rigidly secured to the lower flange Theguide bracket D is rigidly secured to the upper flange of thelooselyreceives the rod A retained within the guide pin 18.

The bracket end sill 17, and the latter being bracket D by a C comprisesan upper substantially cylindrical sleeve portion 19, a

y lower vertically i extending wall portion 20,

and a pair of opposite side walls 21 `merging at their upper ends withthe wall of the sleeve 19 and having their outer edges downwardlyinclined and merging with the lower end of the wall 20.

At the lower extremity,

the wall 20 is provided with a horizontally extending, outwardly pro]ecting lug 22, re-

showing cessed at its outer end'as indicated at 23 to provide a guidebearing for the bracket C is also provided with a lug24, rearwardlyprojecting tion thereof'` and inclined transversely to correspond withthe inclination of the car` rod A. The

from the central porroof. yThe bracket C is rigidly secured in yposition `on the cargby lug screws and bolts, or any other suitablemeans passing through the flange 24 and the wall 20, respectively..

The sleeve portion 19 of the bracket C is provided with a smooth bore 25adapted to slidingly receive the threaded end 14 of thel rod A `forvertical sliding movement. The

adapted to co-act with the threaded portion 14:` ofthe pull rod A. i Thelower faceof the hub 27 bears on the upper end of the sleeve 19, and thehand wheel B is thereby freely rotatably mounted on said sleeve.

A collar 29 clamped between the nut 30 and an annular shoulder 31 at theupper end of the rod A, co-acts with the upper face of the hub 27 toprevent from becoming disassembled when the rod is fed downwardly.

The operation of the device is as follows: To tighten the brakes, theend wheel B is turned in a clockwise direction; the pull rod which isheld against rotation by the key rib 19 will be moved upwardly throughthe medium of the inter-engaging threads of the latter and hub, therebypulling on the chain 15 connected to the brake mechanism proper. Duringthis operation the downward pull on the hub portion of the hand wheelwill keep the same in bearing contact with the upper face of the sleeve19 of the bracket C. As the operation of tightening the brakes proceeds,the upper end .of the rod will be projected above the hand wheel. Itwill be apparent that this gives visual evidence to a brakeman-eventhough on the roof of a distant car, whether the brake is set or not.

To release the brakes, the hand wheel yis rotated in the oppositedirection to that just the wheel and rodY i holding; means to preventrelease ot the `into contact and described, thereby gradually feedingthe rod brakes.` It will alsobe evident that, by Vproviding `a` verticalpull rod wliichi is subject to tension` only, instead of the nsnall`rotary staf,Whioh in. additionto being subjected to` tension is alsosubjected to torsional strains, a proportionately much lighter `rod maybe` used with consequent economy in i`rst-cost. i i

I have herein shown and described what I now consider the preferredmanner of cari rying out the invention, 'but the same ismerelyillustrativeuand I contemplate all changes *and kmodificationsthat come within the scope of theblaims appended hereto* `-Iola1m: p "yi l l. In a hand brake, thelcom'bnation with aveitieallyextending-pultrod having a threaded portion confined to one end, and

havingl the remaining portion smooth and Unthreaded, said latter portionbeing slidably` secnred ato the car l Wall1 at spaced points otraguideybraeket associated with the threaded end of said ypi1ll-ro d,`said bracket beingin the formlof a cylindrical sleeve portion of lessextent than the threaded portion of said rod and having means by whichthe `cylindrical "portion is secured in "stationary` position on" theoar structure; a "hand wheel rotatably sup- `ported by said bracket andprovided with an internally threaded hub portion adapted toreceiveiandco-act with the threaded portion of said rod; and means forpreventing rotation of said rod at all tiniesrsaid means comprising avertically extending elongated lrey integral with thefinterior wall oisaid" cylindrical portion, saidthreaded portion of;

therod being provided with avertically e;x to shdahly ree` tendinggroove therealong` ceive said elongated key. i

In. ahandubrake, the combination with a vertically extending pull rodhaving a threaded portion; of an elongated guide bracket for verticallyguidingsaidi rod, said;`

bracket heinz;r provided withaicut out `perf` l tionand an offsetapplication of means `for the rod; and a hand wheel rotatably supportedby said bracket and provided with annnternally threaded heb portionadaptedto receivecandicoeact` with the threadediportion ofasaidrod.1 p iIn Witness that I clailn the foregoin l I have hereunto subscribedmynamefthisth dayoiflilay,192255.i` i w1 ,i l ,i l

` f HARLEY E. ANDERS0N.`

portion, permitting the fastening the bracket tothe car structure, and aguide edf, f jacent theencl of the cutout portion adaptq `ed forengagement with

